/*
 * Copyright 2012 LinkedIn Corp.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

$.namespace('azkaban');

azkaban.ChangeSlaView = Backbone.View.extend({
	events: {
		"click": "closeEditingTarget",
		"click #set-sla-btn": "handleSetSla",	
		"click #remove-sla-btn": "handleRemoveSla",
		"click #add-btn": "handleAddRow"
	},
	
	initialize: function(setting) {
		$('#sla-options').on('hidden.bs.modal', function() {
			slaView.handleSlaCancel();
		});
	},
	
	handleSlaCancel: function() {
		console.log("Clicked cancel button");
		var scheduleURL = contextURL + "/schedule";
		var tFlowRules = document.getElementById("flowRulesTbl").tBodies[0];
		var rows = tFlowRules.rows;
		var rowLength = rows.length
		for (var i = 0; i < rowLength-1; i++) {
			tFlowRules.deleteRow(0);
		}
	},
	
	initFromSched: function(scheduleId, flowName) {
		this.scheduleId = scheduleId;
		var scheduleURL = contextURL + "/schedule"
		this.scheduleURL = scheduleURL;
		
		var indexToName = {};
		var nameToIndex = {};
		var indexToText = {};
		this.indexToName = indexToName;
		this.nameToIndex = nameToIndex;
		this.indexToText = indexToText;
		
		var ruleBoxOptions = ["SUCCESS", "FINISH"];
		this.ruleBoxOptions = ruleBoxOptions;
		
		var fetchScheduleData = {
			"scheduleId": this.scheduleId, 
			"ajax": "slaInfo"
		};
	
		var successHandler = function(data) {
			if (data.error) {
				alert(data.error);
				return;
			}
			if (data.slaEmails) {
				$('#slaEmails').val(data.slaEmails.join());
			}
			
			var allJobNames = data.allJobNames;
			
			indexToName[0] = "";
			nameToIndex[flowName] = 0;
			indexToText[0] = "flow " + flowName;
			for (var i = 1; i <= allJobNames.length; i++) {
				indexToName[i] = allJobNames[i-1];
				nameToIndex[allJobNames[i-1]] = i;
				indexToText[i] = "job " + allJobNames[i-1];
			}
			
			// populate with existing settings
			if (data.settings) {
				var tFlowRules = document.getElementById("flowRulesTbl").tBodies[0];
				for (var setting in data.settings) {
					var rFlowRule = tFlowRules.insertRow(0);
					
					var cId = rFlowRule.insertCell(-1);
					var idSelect = document.createElement("select");
					idSelect.setAttribute("class", "form-control");
					for (var i in indexToName) {
						idSelect.options[i] = new Option(indexToText[i], indexToName[i]);
						if (data.settings[setting].id == indexToName[i]) {
							idSelect.options[i].selected = true;
						}
					}								
					cId.appendChild(idSelect);
					
					var cRule = rFlowRule.insertCell(-1);
					var ruleSelect = document.createElement("select");
					ruleSelect.setAttribute("class", "form-control");
					for (var i in ruleBoxOptions) {
						ruleSelect.options[i] = new Option(ruleBoxOptions[i], ruleBoxOptions[i]);
						if (data.settings[setting].rule == ruleBoxOptions[i]) {
							ruleSelect.options[i].selected = true;
						}
					}
					cRule.appendChild(ruleSelect);
					
					var cDuration = rFlowRule.insertCell(-1);
					var duration = document.createElement("input");
					duration.type = "text";
					duration.setAttribute("class", "form-control durationpick");
					var rawMinutes = data.settings[setting].duration;
					var intMinutes = rawMinutes.substring(0, rawMinutes.length-1);
					var minutes = parseInt(intMinutes);
					var hours = Math.floor(minutes / 60);
					minutes = minutes % 60;
					duration.value = hours + ":" + minutes;
					cDuration.appendChild(duration);

					var cEmail = rFlowRule.insertCell(-1);
					var emailCheck = document.createElement("input");
					emailCheck.type = "checkbox";
					for (var act in data.settings[setting].actions) {
						if (data.settings[setting].actions[act] == "EMAIL") {
							emailCheck.checked = true;
						}
					}
					cEmail.appendChild(emailCheck);
					
					var cKill = rFlowRule.insertCell(-1);
					var killCheck = document.createElement("input");
					killCheck.type = "checkbox";
					for (var act in data.settings[setting].actions) {
						if (data.settings[setting].actions[act] == "KILL") {
							killCheck.checked = true;
						}
					}
					cKill.appendChild(killCheck);
					$('.durationpick').datetimepicker({
						pickDate: false,
						use24hours: true
					});
				}
			}
			$('.durationpick').datetimepicker({
				pickDate: false,
				use24hours: true
			});
		};

		$.get(this.scheduleURL, fetchScheduleData, successHandler, "json");
		
		$('#sla-options').modal();
		
		//this.schedFlowOptions = sched.flowOptions
		console.log("Loaded schedule info. Ready to set SLA.");
	},
	
	handleRemoveSla: function(evt) {
		console.log("Clicked remove sla button");
		var scheduleURL = this.scheduleURL;
		var redirectURL = this.scheduleURL;
		var requestData = {
			"action": "removeSla", 
			"scheduleId": this.scheduleId
		};
		var successHandler = function(data) {
			if (data.error) {
				$('#errorMsg').text(data.error)
			}
			else {
				window.location = redirectURL
			}
		};
		$.post(scheduleURL, requestData, successHanlder, "json");
	},
	
	handleSetSla: function(evt) {
		var slaEmails = $('#slaEmails').val();
		var settings = {};
		var tFlowRules = document.getElementById("flowRulesTbl").tBodies[0];
		for (var row = 0; row < tFlowRules.rows.length-1; row++) {
			var rFlowRule = tFlowRules.rows[row];
			var id = rFlowRule.cells[0].firstChild.value;
			var rule = rFlowRule.cells[1].firstChild.value;
			var duration = rFlowRule.cells[2].firstChild.value;
			var email = rFlowRule.cells[3].firstChild.checked;
			var kill = rFlowRule.cells[4].firstChild.checked;
			settings[row] = id + "," + rule + "," + duration + "," + email + "," + kill; 
		}

		var slaData = {
			scheduleId: this.scheduleId,
			ajax: "setSla",			
			slaEmails: slaEmails,
			settings: settings
		};

		var scheduleURL = this.scheduleURL;
		var successHandler = function(data) {
			if (data.error) {
				alert(data.error);
			}
			else {
				tFlowRules.length = 0;
				window.location = scheduleURL;
			}
		};
		$.post(scheduleURL, slaData, successHandler, "json");
	},
	
	handleAddRow: function(evt) {
		var indexToName = this.indexToName;
		var nameToIndex = this.nameToIndex;
		var indexToText = this.indexToText;
		var ruleBoxOptions = this.ruleBoxOptions;

		var tFlowRules = document.getElementById("flowRulesTbl").tBodies[0];
		var rFlowRule = tFlowRules.insertRow(tFlowRules.rows.length-1);
		
		var cId = rFlowRule.insertCell(-1);
		var idSelect = document.createElement("select");
		idSelect.setAttribute("class", "form-control");
		for (var i in indexToName) {
			idSelect.options[i] = new Option(indexToText[i], indexToName[i]);
		}
		cId.appendChild(idSelect);
		
		var cRule = rFlowRule.insertCell(-1);
		var ruleSelect = document.createElement("select");
		ruleSelect.setAttribute("class", "form-control");
		for (var i in ruleBoxOptions) {
			ruleSelect.options[i] = new Option(ruleBoxOptions[i], ruleBoxOptions[i]);
		}
		cRule.appendChild(ruleSelect);
		
		var cDuration = rFlowRule.insertCell(-1);
		var duration = document.createElement("input");
		duration.type = "text";
		duration.setAttribute("class", "durationpick form-control");
		cDuration.appendChild(duration);

		var cEmail = rFlowRule.insertCell(-1);
		var emailCheck = document.createElement("input");
		emailCheck.type = "checkbox";
		cEmail.appendChild(emailCheck);
		
		var cKill = rFlowRule.insertCell(-1);
		var killCheck = document.createElement("input");
		killCheck.type = "checkbox";
		cKill.appendChild(killCheck);
		
		$('.durationpick').datetimepicker({ 
			pickDate: false,
			use24hours: true
		});
		return rFlowRule;
	},
	
	handleEditColumn: function(evt) {
		var curTarget = evt.currentTarget;
		if (this.editingTarget != curTarget) {
			this.closeEditingTarget();
			
			var text = $(curTarget).children(".spanValue").text();
			$(curTarget).empty();
						
			var input = document.createElement("input");
			$(input).attr("type", "text");
			$(input).css("width", "100%");
			$(input).val(text);
			$(curTarget).addClass("editing");
			$(curTarget).append(input);
			$(input).focus();
			this.editingTarget = curTarget;
		}
	},
	
	handleRemoveColumn: function(evt) {
		var curTarget = evt.currentTarget;
		// Should be the table
		var row = curTarget.parentElement.parentElement;
		$(row).remove();
	},
	
	closeEditingTarget: function(evt) {
	}
});
